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I am using Growatt SPF 5000 ES with 4 deep cycle LA batteries used in UPS mode. After monitoring the system, i am sure the inverter is powered by the batteries even in the presence of utility. Any load priority Utility first or SBU or SUB manifesting the same unstable charger after charging the...

Hello, I have installed Growatt SPF 5000 ES connected to grid and batteries without solar panels. I am using four C10 Luminous batteries LPPT 12200 200AH. The inverter is working normally, yet something disturbing is happening when utility is charging the batteries. The charger start to raise...